Separate track storage of texture and depth views for multiview coding plus depth

Abstract

Techniques for encapsulating video streams containing multiple coded views in a media file are described herein. In one example, a method includes parsing a track of multiview video data, wherein the track includes one or more views, including only one of a texture view of a particular view and a depth view of the particular view. The method further includes parsing a track reference to determine a dependency of the track to a referenced track indicated in the track reference. Track reference types include ‘deps’ that indicates that the track includes the depth view of the particular view and the reference track includes the texture, ‘tref’ that indicates that the track depends on the texture view which is stored in the referenced track, and ‘dref’ that indicates that the track depends on the depth view which is stored in the referenced track.

Description

CLAIM OF PRIORITY[0001]This application claims priority to U.S. Provisional Application No. 61 / 749,089, filed on Jan. 4, 2013, the entire content of which is incorporated herein by reference.TECHNICAL FIELD[0002]This disclosure relates to video coding and storing video content and more particularly to techniques for storing video streams containing multiple coded views.BACKGROUND[0003]Digital video capabilities can be incorporated into a wide range of devices, including digital televisions, digital direct broadcast systems, wireless broadcast systems, personal digital assistants (PDAs), laptop or desktop computers, tablet computers, e-book readers, digital cameras, digital recording devices, digital media players, video gaming devices, video game consoles, cellular or satellite radio telephones, so-called “smart phones,” video teleconferencing devices, video streaming devices, transcoders, routers or other network devices, and the like. Digital video devices implement video compress...

AI Technical Summary

Benefits of technology

The patent describes techniques for storing video data with multiple coded views, including a track reference that indicates the dependency of a track on another track. This allows for more efficient storage of video data and reduces the amount of data needed to store it. The techniques involve parsing the track of video data to determine which parts of the video are dependent on other parts, and using the track reference to indicate which parts of the video require the dependency. This reference helps to organize the video data and reduces the size of the video file. The patent also describes a device and computer-readable storage medium for implementing these techniques.

Problems solved by technology

First, there would be no way to indicate whether a view included in a track contains only texture view, only depth view, or both texture and depth view components.

Further, there would be no way to indicate which part (the texture view, the depth view, or both) of a first view that a second view depends on is required for decoding the second view.

Also, there would be no way to signal the spatial resolution of the depth views without parsing into the sequence parameter sets (SPS) referred to by the depth view components.

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